Using your smartphone's camera and a simple OCR (optical character recognition) program, it shouldn't be prohibitively difficult to produce an app that allows you to point your smartphone at a physical paper page in an actual (gosh, really!?) BOOK (or magazine, newspaper, etc) and perform a Find-on-Page action. You know, for folks who still enjoy the feel of an actual paper book. Rather like using GPS simply to find your location on a paper map. That is all.-- 21 Quest, Oct 23 2012 With Google Goggles you can point your camera phone at a page of text and translate it into english. It shouldn't be too hard to search the text.-- DIYMatt, Oct 23 2012 I'd use this.-- AusCan531, Oct 23 2012 Is "actual (gosh, really!?) book" the official 2010's retronym for "book"?-- phundug, Oct 24 2012 Indeed it seems to be.-- 21 Quest, Oct 24 2012 To be official, the last 4 characters have to be capitalised.-- pocmloc, Oct 24 2012 I'll never look for Waldo again!!-- Voice, Oct 25 2012 Unless you're looking at something like the OED, the actual amount of text on a given page is fairly low. A PDF or e-book search checks the whole text, this checks a page (or two at most) at a time. This means finding a given word or phrase in a work is still not going to be quick.-- MechE, Oct 25 2012 Quick enough for text-dense novels like those by Stephen R. Donaldson, or perusing a hardcopy encyclopedia, or college textbooks.-- 21 Quest, Oct 25 2012 ...but give it some Ayn Rand and watch it implode.-- Alterother, Oct 25 2012 random, halfbakery